Re: question on GtkScrolledWindow

[Iago Rubio <iago iagorubio com>]

Sorry, looks like the attachment got stripped.

Here you've got the code.




#include <gtk/gtk.h>
// gcc `pkg-config --cflags --libs gtk+-2.0` test_w.c

gboolean
scroll_viewport (gpointer data)
{
  GtkWidget *viewport = (GtkWidget*)data;
  GtkAdjustment *adj;
  gdouble upper;
       
  adj = gtk_viewport_get_hadjustment (GTK_VIEWPORT(viewport));  
  g_object_get (adj, "upper", &upper, NULL);    
  gtk_adjustment_set_value (adj, upper/2);
  
  return FALSE;
}

int
main (int argc, char *argv[])
{
  GtkWidget *window;
  GtkWidget *scrolledwindow;
  GtkWidget *viewport;
  GtkWidget *fixed;
  GtkWidget *image;

  gtk_set_locale ();
  gtk_init (&argc, &argv);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_default_size (GTK_WINDOW(window), 300, 100);
  
  scrolledwindow = gtk_scrolled_window_new (NULL, NULL);
  gtk_widget_show (scrolledwindow);
  gtk_container_add (GTK_CONTAINER (window), scrolledwindow);

  viewport = gtk_viewport_new (NULL, NULL);
  gtk_widget_show (viewport);
  gtk_container_add (GTK_CONTAINER (scrolledwindow), viewport);

  fixed = gtk_fixed_new ();
  gtk_widget_show (fixed);
  gtk_container_add (GTK_CONTAINER (viewport), fixed);
  gtk_widget_set_size_request (fixed, 3000, 45);

  image = gtk_image_new_from_stock (GTK_STOCK_OPEN,
GTK_ICON_SIZE_DIALOG);
  gtk_widget_show (image);
  gtk_fixed_put (GTK_FIXED (fixed), image, 1600, 10);
  gtk_widget_set_size_request (image, 64, 64);

  g_signal_connect_swapped (window, "delete-event", gtk_main_quit,
NULL);  
  gtk_widget_show (window);
  
  g_idle_add (scroll_viewport, (gpointer)viewport);

  gtk_main ();
  
  return 0;
}